Demolition Derby Rules

Show Date: Sunday August 27th 2023 at 1pm. Vehicle inspection prior to start time, please arrive early.
Volunteer Lead: Brad Lowe (EDAS Office 705-726-1200)

A. Definitions:
1. Mini Cars: Any 3 or 4 cylinder gas powered car. Maximum 16” O.E. rims. 1980 and newer.
2. Mini Vans/Large Class: Any 4 or 6 cylinder gas powered 2wd. Mid size van.
3. All Official’s decisions on class placement are final.
B. Demolition Derby
1. All Official’s decisions are final.
2. Driver’s must be eighteen (18) years of age or older and have a valid Driver’s Licence.
3. Pit Crew must be sixteen (16) years of age or older (maximum of 2). Must supply I.D.
4. No Refunds. Special circumstances related to technical evaluation may lead to a refund but only at the
discretion of the EDAS.
5. Drivers and Pit Crew must sign all release forms.
6. The EDAS volunteers and/or officials will not be held responsible for any cars, parts or personal property
before, during or after the event.
7. Vehicles run in previous demolition derbies may be considered too damaged or unsafe to be entered into
the event.
8. Anyone under the influence of alcohol or drugs will not be permitted to participate in the event.
9. Intentional hit on Driver’s door will result in automatic disqualification (official’s ruling).
10. There is a 60 second restart rule in effect, drivers must restart their vehicle and make a competitive hit
within 60 seconds or they will be disqualified – Sandbagging will not be tolerated! Sandbagging will result in
disqualification.
11. There will be a 2 fire rule in effect at the official’s discretion. If there is no potential driver hazard or another
fire hazard (as deemed by the officials) the driver will be allowed to continue. Once you have a second fire –
you are disqualified.
12. Last aggressive hit will win the heat (official’s decision).
13. Driver’s will be disqualified if any illegal actions are observed.
14. Officials reserve the right to inspect and/or re-inspect any car – any time. Failure to oblige will result in
disqualification.
15. All vehicles to be removed the day of the event by 5:30 pm unless other arrangements made with EDAS.
16. Driver’s meeting to be held at 11 am – Attendance is mandatory.
17. All cars must be on the grounds by 10:30 am.
18. Be sure the highway traffic acts and MTO rules are followed when transporting derby vehicles to grounds.
19. Officials will be using flag signals: Green – start, Red – stop, there is an emergency, stop engine, remain in car,
Black – you are disqualified, stop engine, remain in car, Air Horn – fire, stop car, stop engine, remain in car
unless told otherwise.
20. A grand trophy will be presented to all 1st place winners, Driver’s will receive a plate on the trophy but the
trophies will remain on EDAS property.
21. Entry forms and money to be received one (1) week prior to event.
22. Each driver shall wear a helmet, eye protection and minimum of a stock seat belt.
23. Please read these rules as many times as necessary to have a completed understand of the event and EDAS
expectations.
24. No coaching

Entry fee will be $60 or more per vehicle, this includes an annual mandatory $15 membership fee to the EDAS. This
membership will allow you to vote on EDAS activities at the annual AGM and have a voice when it comes to
demolition derby activity in future years. Entry fee includes 2 Pit Crew positions and parking for the derby vehicle
and one other work vehicle (truck with trailer or other). Additional vehicles must be parked in the main lot with
regular Fair parking.

Contact the Barrie Fair at 705-726-1200

Email: [email protected]

Mailing address: Essa & District Agricultural Society, 7505 10th Line P.O. Box 1099, Thornton, Ontario L0L 2N0

These rules were designed for fair play, sporting, no advantages or disadvantages for first time or veteran drivers.
Please note, this derby is operated and officiated by volunteers – please be patient as we process your questions or
concerns.

Download Rules:

Junk Run

Figure 8 / X8

Windshield Class

Full Size

Pro Stock Truck

Demo Cross 

Demolition Derby Vehicle Building Specifications

These rules apply to mini vans/large class and 4-cylinder cars, some variances apply.

1. Safety for spectators, officials, drivers and crews is our first concern. Fire, flying debris, and impact injuries, keep these thoughts in mind when you are stripping and building your car.
2. Mandatory stripping of a car:
* Remove all glass, lights, lenses, mirrors and hardware.
* Remove all body trim, hubcaps and exterior ornaments.
* Remove fuel tank.
* Remove trailer hitch and all mounting hardware.
* Remove all interior upholstery, plastics, carpet, and trim except front seat. Dashboard may stay in.
* Prior to tech inspection car must be cleaned of all loose objects, glass and debris.
3. Building a safe competitive car:
* The tech judge’s decisions will be final.
* There will be no reinforcement except where specified.
* If it does not say it is allowed then it is not allowed.
* All vehicles will be checked for working brakes.
* Mandatory seat belt – lap belt is a minimum requirement.
4. Doors and door reinforcements:
* We will allow a cage built around driver from a sturdy, easily assembled material bolted to
* the car body. Bars may be welded to each other – not to be secured from B post to B post.
* As a minimum, the driver’s door may be reinforced with a maximum or 2″ x 6″ box steel, for a
* maximum of 76″ long.
* Door bars must be bolted or welded.
* Door bar can extend 8″ maximum ahead of the front fender/door seam.
* Placement of bolts; beware of drivers’ movement inside the vehicle.
* Remember, if this bar falls off – you are automatically disqualified from your heat.
* All doors must be chained, welded, stopped or secured shut.
* Passenger door bar attached in a similar way as above. This bar is optional.
* Cross bar behind the driver’s seat is strongly recommended – top of left B post to right floor.
* Head rest optional, but must be secure.
* It is also recommended that the bars, door and the steering wheel be padded around the driver.
5. Window areas:
* Minimum of one upright bar must be placed in windshield area in front of driver, steel mesh or
* plexiglass is optional on top of bars.
* Bars or mesh over driver’s window area is optional.
6. Hoods:
* Hoods are mandatory.
* Hood must have large enough hole suitable for fire extinguishing.
* Hood must be fastened with a minimum of two chains, bolts or wire; easily opened in case of fire.
* Hoods to be left open until inspected.
7. Trunks:
* Trunk lids are mandatory.
* Must be chained, bolted or wired; station wagon end gates secured with two chains, bolts or wires.
8. Battery:
* Must be relocated to the passenger side floor securely fastened by nuts, bolts and washers.
* Battery must be covered by a rubber mat or in a marine battery case.
* One (1) automotive type battery only.
9. Electric Switches:
* If used must be uniform. Up/forward for on, down/back for off.
* The electrical system must be fused.
10. Fuel System:

* Electric fuel pump must be isolated with non-flammable material covering lines, tank & pump. Non-flammable covering may be fire resistant blanket or airbag material.

* Floating gas tanks are permitted. Gas tank protector is allowed. Must be 2-4 inches away from the floor and any other sheet metal, cannot be any wider than 24-26 inches at its widest point. Gas tank protector can only be attached to the post to post bar. Not allowed to be attached to halo bar or floor in any way!! Over build gas tank protectors will be asked to cut down, or not allowed to run. Officials decision.
11. Cooling Systems:
* Cooling system must remain stock or be removed.
* Antifreeze must be drained and filled with water only!!!
* Cooling fans can be run but no steel fan blades are permitted.
12. Air Intake and Exhaust Systems:
* Must have an air cleaner assembly with a filter element to act as flame arrester.
* Exhaust must exit the engine compartment through the hood or out the bottom, manifolds alone are not enough, must extend 6″ past fire wall and not near fuel lines.
13. Bumpers:
* Appropriate size CAR BUMPERS ONLY. Rebar bumper only, chrome full size car bumpers not allowed on the front of a mini car. Bumper ends must be bent inward, no jagged edges. May be wired to rad cradle in 2
locations. May be welded to the brackets & frame, 6” from the back of bumper, 2 plates per side to hold bumper on. No steel the inside of the frame. Bumper shocks can be welded. Excessive use of material will be asked to be removed. Stock size bumper bolts acceptable for mounting. Bumpers cannot be wired to the hood. REAR BUMPERS STOCK. NO LOADING OF BUMPERS. Officials may request a hole be made in bumper for inspection.
14. Tires and Rims:
* Stock rims cannot be altered or reinforced.
* Valve stem protectors and tubes are allowed.
* No studded tires.
* Air only in tires, no additives, liquids, solids or fillers.
* Wheel wells may be trimmed for clearance (maximum of 1 inch).
* No light truck tires allowed.
* All tires must have visible dot and ply ratings on them.
* All wheel weights must be removed – mini car tires cannot exceed 16 inches rim diameter.
* Full size cars & mini van tires. Cannot exceed 18 inch diameter.
15. Engines, transmissions, differentials:
* Must be stock.
* Motor mounts and transmission mounts may be chained.
* Shifter type optional.
* Transmission cooler must be disconnected at the radiator or in front of the radiator.
* Transmission coolers are optional and if used must be securely mounted under the hood, behind
* the radiator and in front of the firewall.
* Steering must be stock and in stock position, no alterations or modifications permitted.
17. Paint and Body:
* No holes to be cut or left uncovered in the firewall.
* Driver’s door, only, must be painted white.
* Car must be any other colour(s) than white.
* No profanity as decorating or advertising.
* No cloning of paint jobs if you enter more than 1 car.
* Roof signs or other objects are not permitted in derby pits.
ALL VEHICLES MUST HAVE A WORKING FIRE EXTINGUISHER MOUNTED SECURELY WITHIN DRIVER’S REACH

***Rules and Terms follow a similar format to the documentation published by the Collingwood Agricultural Society and the Great Northern Exhibition, and Mom’s Motor Sports.***

TYPE OF CAR

Hoods are not mandatory. Without hood – use electric fan only – fans directly connected to motor must be removed. Hood to be in stock position or removed. With hood – a 12″ opening must be cut in the center of the hood. Hoods must remain open for officials’ inspection. Hood can be fastened down in maximum of 8 places including seat belt strapping, wire, chain or 2x2x2 angle iron bolted together with a 3/8″ bolt. Hoods/rad support can be wired to bumper in 4 places. These spots will account for 2 of the 8 spots. Hood can be bolted thru the rad support with 2 – ¾” rod or bolts can pass through hood, rad support, factory body mount location, bushing or hockey puck must be in place. Tailgates- If you choose to run without a tailgate/hatch you can have 2 spots of wire from side to side in the tail light area. Gates can be fastened closed in maximum of 8 place. Rear bumper can be wired to tailgate in 2 spots. Tailgates can be laid flat on the box floor and fastened thru the box only with 2- 3/4″ lengths of threaded rod. NOT through frame. Box sides can be folded over and fastened thru the box only with 2- 3/4″ lengths of threaded rod. Cabs can be welded to box with 2 3×3″plates per side and be bolted with 2 3/4 inch bolts with 4×4 washers fastening the cab to the box. Tailgates can be fastened shut in 8 total spots. No threaded rod from frame/floor to roof on SUV

13. DOOR FASTENING